b.Explain balancing of single rotating mass by a
single mass rotating in same plane?

4.

a.Explain the principle and working of porter
governor?

b.Compare fly wheel and governor.

5.

a.Define the following

i.Shear force

ii.Bending moment

iii.Point of contra flexure

b.A cantilever of length 4cm carries of uniformly
distributed load of 3KN/m length over a whole length and a point load of 4kn at
he free end. Draw the shear force and bending moment diagram

6.

a.What do you mean by radius of gyration?

b.Find the moment of inertia of a retrungular
section shown in fig. about the axis xx passing through centroiod G . Calculate
radius of gyration and section modulus Z,xx also calculate moment of inertia
about base

7.An air drum is made of 10 mm thick plate. The
diameter of shell is 3m. the efficiency of longitudinal and circumferential
joints are 80% and 45 % respectively. If the tensile stress in the plate is
limited to 100N/mm2, find the maximum safe air pressure